Nathaniel Philbrick, author of In the Heart of the Sea, talks about his interest in the whaleship Essex and the history of whaling on Nantucket. Hear more about Philbrick's historical interests and other works he has written.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
The most daring and innovative accomplishment at the turn of the 20th century.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
The New Deal program CCC put three million young men to work in camps across America.
When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.